Having your minds set on how live is going to be and it actually being that way are two different things. This is immaturity speaking. When you leave home, you want to do it with your parents blessing. You don't realize it now, but you will need them down the road and any guy who is willing to have you leave your family home without your parents blessing, does not care about you. He is being selfish
How long have you known this guy? What kind of job does he have?
If they know you are dating him and like him, why are you worried about them making trouble for you?
Cleaning up after and cooking for a guy does not mean you are ready to be living with someone. You should be doing those things at home.
How long have you been dating this guy?